Do you sometimes get back pain? Or do you feel numbness or weakness in an arm or leg? Maybe these are not just random things. Today we are going to talk about a condition that is rarely heard of, but can be very important. That is a blood vessel in the spinal cord, a condition called `(Spinal Arteriovenous Malformation)` or `(AVM)` in medical terms.
What is this `(Spinal AVM)`?
Simply put, a Spinal AVM is a condition where blood vessels (blood vessels) get tangled and tangled around or on your spinal cord (the nerve cord inside your spine). Do you know how this happens? Our bodies have arteries (veins that carry oxygenated blood from the heart) and veins (veins that carry used blood back to the heart). Normally, these arteries and veins are connected by a system of very fine blood vessels called capillaries . These capillaries are what distribute oxygen to our spinal cord and the surrounding tissues.
However, in this `(AVM)` condition, an artery connects directly to a vein. The capillary system in between is bypassed. Imagine, it's like a traffic jam from a major road suddenly diverting to a minor road and then reconnecting to a major road. What happens as a result? The amount of oxygen that the cells in the spinal cord need is reduced. Also, this abnormal connection can cause the blood vessels to enlarge, change pressure, and sometimes burst . If that happens, excessive bleeding `(Hemorrhage)` can occur, which can be life-threatening . But don't worry, there are treatments to prevent this condition. Sometimes doctors also call this `(Spinal Arteriovenous Shunt)`, as you may have heard.
What are the main types of `(Spinal AVM)`?
Now let's see what are the main types of `(Spinal AVM)`. There are actually five types of blood vessel defects that occur in the spinal cord. These include `(Spinal Arteriovenous Malformations - AVM)` and `(Spinal Arteriovenous Fistulas - AVF)`. In both of these, an abnormal connection occurs between an artery and a vein. However, `(AVM)` occurs inside the spinal cord tissue. `(AVF)` occurs in the `(Dura mater)` , the covering membrane that surrounds the spinal cord.
Here are the five main types:
- Type I: Dural AVF: This is located in the outermost covering of the spinal cord (dura mater).
- Type II: Intramedullary glomus AVM: This is located inside the spinal cord.
- Type III: Intramedullary juvenile AVM: This can spread both inside the spinal cord and into surrounding tissues. It is most common in children and young adults.
- Type IV: Perimedullary AVF: This is located in the tissues surrounding the spinal cord.
- Type V: Extradural AVF: This is in the space outside the dura mater.
One thing to remember is that if an AVM ruptures, the symptoms can usually be more severe than those of an AVF. This is because an AVM ruptures directly into the tissue, whereas an AVF is usually contained within the dura mater, which provides some protection.
How common is this condition?
How common is this condition called `(Spinal AVM)`? In fact, it is the most common of the blood vessel diseases that occur in the spinal cord. However, it is difficult to say exactly how many people have it. This is because many people do not know they have it until they have symptoms. Sometimes it is discovered accidentally during tests for another disease. Therefore, it is usually considered a rare condition .
What are the symptoms of a `(Spinal AVM)`?
The symptoms of a `(Spinal AVM)` occur because the tangled mass of blood vessels presses on the nerve roots of the spinal cord and the spinal cord itself. In medicine, we call this kind of pressure `(Myelopathy)` . The most common symptoms are:
- Back pain .
- Muscle weakness or stiffness (in the neck, arms, and legs).
- Numbness, loss of feeling, or strange sensations in the legs.
- Headache .
- Loss of balance, difficulty walking .
- Difficulty controlling urine and stool .
These symptoms vary depending on the type of AVM, how severe it is, and where it is located in the spine. For example, if the AVM is in your upper back or chest, symptoms may occur in your chest, trunk, back, arms, and legs. If it is in your mid-back or lower back, symptoms may affect your lower abdomen, back, or legs.
These symptoms can appear on one side of the body or on both sides. Sometimes you may notice that they gradually increase over time, or they may come and go. Keep in mind that some people can have a spinal AVM without any symptoms.
However, it is important to see a doctor as soon as symptoms begin. Something like sudden, severe back pain could be a sign that an AVM has ruptured. This is a medical emergency, so seek treatment right away.
When do symptoms start?
These `(AVM)` symptoms can appear at any age. However, most people experience symptoms between the ages of 15 and 60. It can also vary depending on the type of `(AVM)`. Most often, these `(Spinal AVM)` conditions are congenital . That is, a baby may have had problems with these blood vessels while they were still in the womb. However, sometimes this condition can also occur after adulthood (acquired) .
What are the causes of `(Spinal AVM)`?
Doctors still don't know exactly what causes this `(Spinal AVM)`.
In the case of congenital `(Spinal AVM),` studies have shown that during the embryonic period (when the baby is developing in the womb), the blood vessels around the spinal cord develop abnormally. For example, it may be due to a change in the blood flow path to avoid an obstruction.
After birth, an acquired ``Spinal AVM`` can occur after an accident, surgery, or other type of injury to the spinal cord .
What complications can this cause?
The complications that can occur due to a `(Spinal AVM)` can sometimes be life-threatening . The main ones are:
- Hemorrhage: The AVM can burst and start bleeding inside the body.
- Ischemia: This is when the blood supply is interrupted. This reduces the amount of oxygen and nutrients that body parts need. This can cause cells to stop working properly, and over time, damage can accumulate.
- Paralysis: If the spinal cord is damaged, it can cause paralysis, a condition in which some parts of the body cannot be moved.
How do you find out if you have a `(Spinal AVM)`?
How does a doctor diagnose a spinal AVM? They will first examine you physically , then perform a neurological exam . In addition, they may also order some specialized imaging tests .
These imaging tests can help determine the size of the AVM and where it is located in the spinal cord. Your doctor may use tests like these:
- Magnetic Resonance Imaging (MRI) scan.
- Magnetic Resonance Angiography (MRA) test (this specifically looks at blood vessels)
- Myelogram and CT (Computed Tomography - CT) scan.
In addition, if you have numbness or muscle weakness, nerve conduction testing and electromyography (EMG) tests may be performed.
How is a `(Spinal AVM)` treated?
There are several main methods of treating a `(Spinal AVM)`:
- Embolization: In this procedure, a surgeon uses a very thin tube (catheter) to reach the affected blood vessel and stop the bleeding or close off the abnormal connection.
- Surgery: The surgeon completely removes the AVM and allows the blood vessels to flow properly.
- Stereotactic radiosurgery: In this, high-energy radiation beams are directed precisely to the location of the AVM, destroying and closing the abnormal blood vessel connections.
Your doctor will explain to you which treatment is best for your condition. The size of the AVM and its location will determine the safest and most effective treatment. He or she will also tell you about the side effects of the treatment so you can make an informed decision.
In most cases of `(Spinal AVM)`, surgery is required to prevent the aforementioned complications. Until the day of surgery, your doctor may prescribe painkillers or other treatments to control your symptoms and keep you comfortable.
How soon will I feel better after treatment?
After surgery, you will start to feel relief from symptoms such as pain and headaches. However, the time it takes to fully recover will vary depending on the type of surgery your doctor has recommended. It can usually take a few weeks. After surgery, you may also need physical therapy or occupational therapy to strengthen your muscles and improve your balance.
What is the outlook for this situation?
Spinal AVMs can be treated surgically. The best results are achieved when the condition is diagnosed and treated early, before complications develop. However, this is not always easy. Sometimes, even if a spinal AVM is present, symptoms may not appear immediately. If left untreated, it can lead to serious, life-threatening complications such as paralysis and bleeding.
How successful is Spinal AVM surgery?
Spinal AVM surgery is generally successful . One study found that embolization and surgical removal treatments were 74% and 88% successful, respectively. In the same study, 70% of those treated experienced relief of symptoms.
However, the outcome of the surgery depends on many factors, such as your general health, the size of the AVM, and its location. Your doctor can best advise you on your condition.
Spinal AVM and pregnancy
Although it is possible to have a successful pregnancy with a `(Spinal AVM)`, there is a high risk of complications . There is a high risk of the `(AVM)` rupturing, causing severe pain, and causing paralysis. This can be life-threatening for both the mother and the unborn baby. Therefore, your doctor will advise you on the safest treatments for your condition and how to prepare for a healthy pregnancy.
Can this be prevented?
There is currently no known way to prevent this condition (Spinal AVM). Further research is being conducted to determine what causes these conditions.
When do you need to see a doctor?
If you feel like you have symptoms of a `(Spinal AVM)`, definitely see a doctor .
Sometimes, an AVM can burst suddenly. This is a medical emergency. If you experience any of the following symptoms, go to a hospital emergency room immediately:
- Sudden, unbearable back pain.
- Pale skin, coldness, sweating.
- Difficulty breathing.
- Heart rate increases.
- Nausea or vomiting.
- Loss of balance in the body.
- Confusion, memory loss.
- Difficulty moving or turning the neck.
- Severe headache.
- Loss of consciousness.
Questions you should ask your doctor
Some questions you should ask your doctor:
- Where is my `(Spinal AVM)` located?
- What treatment do you recommend?
- What are the side effects of the treatment?
- How long does it take to recover after surgery?
- Can an AVM grow back after it is removed?
- If one of my close family members has a Spinal AVM, should I also undergo genetic testing?
The most important thing for you to remember!
When symptoms suddenly appear, including changes in body movement and muscle strength, it can be a scary situation. If you feel anything strange, be sure to see a doctor . Severe back pain is usually a major sign that something is seriously wrong. This condition, called a spinal arteriovenous malformation (AVM), can cause life-threatening complications . Therefore, the sooner the disease is diagnosed and treated, the better the outcome . Surgery can correct the abnormal condition of these blood vessels.
` Spinal AVM, spinal cord, blood vessels, back pain, AVM, bleeding, surgery
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